Which Transmission Do I Have?

I resently purchase a 96 F-150 with 300-6 and an auto transmission. I am trying to find out which transmission I have. The transmission code on the door is "E". Is there a list anywhere to say which transmission I have

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.